Precast concrete cribbing



a 1936-- P. c. 'WICHMANN ,0

PRECAST CONCRETE CRIBBING Filed July 19, 1954 2 Sheets-Sheet 1 wfww 'March 24, 1936. R MAN 2,034,851

PRECAST CONCRETE CRIBBING Filed July 19, 1934 f 2 Sheets-Sheet 2Patented Mar. 24, I936 ETED STATES PRECAST CONCRETE CRIBBING Paul C.Wichmann, Cleveland, Ohio, assignor to Preplan, Incorporated, Cleveland,Ohio Application July 19, 1934, Serial No. 735,909

8 Claims.

This invention relates to improvements in building structures, and hasfor its object to provide a flexible inter-locking columnar crib wallwith pillared superstructure.

Another object of the invention is to provide a set of precast units forforming a pillaring assembly for crib walls.

A further object of the invention is to provide a set of reinforcedinterlocking crib wall forming units.

With the above and such other objects in view, as may hereinafter morefully appear, I have invented the device shown in the accompanyingdrawings, in which:

Figure 1 is a front elevational view of my invention, partly brokenaway;

Figure 2 is a side elevation thereof, partly in section;

Figure 3 is a perspective view of the pillaring assembly in set upposition;

Figure 4 is a detail perspective view of a header unit, partly brokenaway;

Figure 5 is a similar view of another stretcher unit;

Figure 6 is a similar view of a pillar unit;

Figure 7 is a transverse sectional view of the header unit;

Figure 8 is a section on line 88 of Figure 7; and

Figure 9 is a bottom plan view of a coping member partly broken away.

Like reference characters indicate like parts, throughout the followingspecification, and in the several views in the drawings in which Iindica tes a flexible, interlocking columnar crib wall, with pillaredsuperstructure, formed according to my invention. In this form of theinvention the structure is formed stepped through the use of headers 2,2a and 2b of different lengths. The superstructure is formed of saidheaders 2, stretchers 3, fillers 4, base stretchers 5, and copingmembers 6. The several members, above referred to, are all interlockingand are formed in the following manner: The headers 2 have their ends 1provided with transverse grooves 8 and 9 on the upper and lower surfacesI and H. These headers are cast with tongues l2 and I3, longitudinallyof said upper surfaces, but terminating short of said ends 1, to permitthe joint ends l4 and I of the stretcher blocks 3 and 3a to seat on saidend 1. The stretchers 3 are provided with longitudinal tongues l6 andI1, on the upper and lower surfaces I8 and I9 respectively, whichtongues extend the entire length of the stretchers, and the terminals 20and 20 of the stretcher tongues being engaged by the grooves 9 of aheader member 2, while the terminals 2| and 2| seat in the groove 8 ofthe header 2, thus, the stretcher and headers are built up ininterlocking relation. Filler 5 blocks 4 of any desired length areprovided with longitudinal grooves 22 and 23, throughout their length,and on their upper and lower surfaces 24 and 25, which grooves receivethe tongues l6 and II, respectively, whereby said fillers are ininterlocking relation with'the stretchers. The same filler blocks areused as spacing fillers between the headers 2 and 2a, in which lattercase the upper and lower tongues l2 and I3 respectively, of the headersengage the grooves of the fillers. The blocks 5, for the base course,are of greater width than the stringers and. headers and are providedwith a longitudinally disposed groove 26 to receive the tongues ll ofthe lower stringers 3b. The lower surface 21 of said membars 6, beingflat to seat on any suitable foundation 28. The coping stringer 6, is,of considerably greater width than the headers 2, and stringers 3, witha longitudinal tongue 29 in the lower surface 30 thereof, to seat in theupper groove 8 of the uppermost header 20. These members 6 are alsoprovided with suitably spaced apart transverse grooves 3|, extendingsubstantially halfway across the width of the coping members, whichlatter grooves are adapted to receive the upper tongues l2 of theheaders 20, whereby the upper headers, stringers, and coping blocks areinterlocked together. Any desired number of fillers may be used betweenthe courses of headers and stringers, even to the extent of formingsolid walls, when desired. All of said members 2, 3, 4, 5 and 6 areformed of reinforced concrete, preferably, the reinforcing beingsubstantially the same in all members as in the header shown inlongitudinal and cross sections in Figures '7 and 8, and in whichlongitudinal wires 32, 33, 34, and 35, held connected by wires 36,having eyes 31, 38, 39 and 40, at their respective corners, and throughwhich said first wires pass, and are held spaced apart from the casting.

From the foregoing it will be seen that I have designed a structurewhich can be rapidly set up by any novice and in which the several unitsare securely interlocked; that the structure is fiexible to any desiredextent, and can be made with a pillared superstructure.

Having described my invention, that which I claim to be new and desireto procure by Letters Patent is:

1. A crib structure consisting of a plurality of interlocking unitsincluding headers, stretchers, and fillers, a base course and a copinginterlocking with certain of said members, said headers havingtransverse grooves adjacent their ends, tongues on the upper and lowersides of said stretchers, said grooves being on the upper and lower endsof said headers, said headers having longitudinal upper and lowertongues between the grooved ends thereof, said fillers having upper andlower longitudinal grooves to be engaged by the opposing tongues of saidstretchers, and the opposing tongues of said headers, stretchers, andfillers being formed of reinforced concrete.

2. The device as claimed in claim 1, said reinforcements comprising fourlongitudinal rods in each of said members, and transverse connectorshaving eyes through which said rods project.

3. The device as claimed in claim 1, said reinforcements comprising fourlongitudinal rods in each of said members, and transverse connectorshaving eyes through which said rods project, said rods of said headersbeing curved adjacent the grooves thereof.

4. A crib structure consisting of a plurality of interlocking unitsincluding headers, stretchers, and fillers, a base course and a copinginterlocking with certain of said members, said headers havingtransverse grooves adjacent their ends, tongues on the upper and lowersides of said stretchers, said grooves being on the upper and lower endsof said headers, said headers having longitudinal upper and lowertongues between the grooved ends thereof, said fillers having upper andlower longitudinal grooves to be engaged by the opposing tongues of saidstretchers, and the opposing tongues of said headers, stretchers andfillers being formed of reenforced concrete, said headers being ofgraduated length to step said structure.

5. The device as claimed in claim 4, the upper heads having upstandingtongues and said coping having recesses to receive said last tongues.

6. A crib structure including a plurality of interlocking headers,stretchers and fillers, said headers having transverse grooves adjacenttheir ends, tongues on said stretchers to engage said grooves,longitudinal upper and lower tongues on said headers between the groovedends thereof, said fillers having grooves to be engaged by said lasttongues or the tongues of said headers.

'7. In a crib structure interlocking headers, stretchers, and fillers,transverse grooves on .said headers, longitudinal tongues on saidstretchers to seat in said grooves, longitudinal tongues on said headersand longitudinal grooves in the fillers to receive the tongues of theheaders or of the stretchers.

8. The device as claimed in claim '7, and said header grooves adapted toreceive tongues of two pairs of said stretchers.

PAUL C. WICHMANN.

